Question

How many moles of carbon are in a sample of 21.45 moles of heptane(C7H16)???????

Answer 1

Answer: The number of moles of carbon atom that the given amount of heptane is 150.15 moles

Step-by-step explanation:

We are given:

Moles of heptane = 21.45 moles

The chemical formula for heptane is
`C_7H_(16)`

1 mole of heptane contains 7 moles of carbon atom and 16 moles of hydrogen atom

So, 21.45 moles of heptane will contain
`(7* 21.45)=150.15moles` of carbon atom

Hence, the number of moles of carbon atom that the given amount of heptane is 150.15 moles

Answer 2

The moles of carbon that are in the sample of 21.45 moles of heptane(C₇H₁₆) is 150.15 moles

calculation

moles of carbon = moles of heptane × number of C atom

number of C atom in heptane = 1 ×7 = 7 atoms

moles is therefore = 21.45 moles × 7 =150.15 moles